Right now ENY kicks in at a fixed rate based on percentages (as I understand it at least)
So for the purpose of explination lets say that ENY starts to kick in when you have a 7% numbers advantage over one of the other two sides. As it is, ENY kicks in at 7% regardless of the actual numbers that percentage is representing.
If the numbers are 10, 10, and 11, the side with 11 is already expierencing ENY dispite only having a one player advantage over each individual team, and having a 1.1-1 advantage over any one team. Divided across two fronts, they only have 1/2 a person more than either one team, but they are already limited by ENY.
So say we add a parabolic curve to the percentage advantage that must be present for ENY to kick in, based on total population. This would mean that ENY needs a higher percentage before it begins to take effect when the population numbers are low, and a lower percentage when the arena population is high, since the total numbers advantage that percentage represents changes based on total arena population.
See what I mean? If we change the percentage required for ENY to take effect, that percentage being determined by total numbers, ENY becomes more dynamic, and form fitting to the current situation rather than just a median of numbers.